diff --git a/java.j2seproject/nbproject/project.xml b/java.j2seproject/nbproject/project.xml
--- a/java.j2seproject/nbproject/project.xml
+++ b/java.j2seproject/nbproject/project.xml
@@ -55,7 +55,7 @@
                     <compile-dependency/>
                     <run-dependency>
                         <release-version>3</release-version>
-                        <specification-version>3.84</specification-version>
+                        <specification-version>3.85</specification-version>
                     </run-dependency>
                 </dependency>
                 <dependency>
diff --git a/java.j2seproject/src/org/netbeans/modules/java/j2seproject/J2SEActionProvider.java b/java.j2seproject/src/org/netbeans/modules/java/j2seproject/J2SEActionProvider.java
--- a/java.j2seproject/src/org/netbeans/modules/java/j2seproject/J2SEActionProvider.java
+++ b/java.j2seproject/src/org/netbeans/modules/java/j2seproject/J2SEActionProvider.java
@@ -798,6 +798,7 @@
                     true :
                     tabName.equals(s);
             execenv.setTabReplaceStrategy(p, p);
+            execenv.setUserAction(false);
             return AntTargetExecutor.createTargetExecutor(execenv)
                     .execute(apc, targetNames);
         }
diff --git a/o.apache.tools.ant.module/apichanges.xml b/o.apache.tools.ant.module/apichanges.xml
--- a/o.apache.tools.ant.module/apichanges.xml
+++ b/o.apache.tools.ant.module/apichanges.xml
@@ -109,6 +109,22 @@
 <!-- ACTUAL CHANGES BEGIN HERE: -->
 
     <changes>
+        
+        <change id="userExecution">
+            <api name="general"/>
+            <summary>Added a method to mark an execution as user / non-user into the <code>AntTargetExecutor.Env</code></summary>
+            <version major="3" minor="85"/>
+            <date year="2017" month="5" day="2"/>
+            <author login="tzezula"/>
+            <compatibility addition="yes"/>
+            <description>
+                <p>Added a method <code>AntTargetExecutor.Env.setUserAction</code>to mark an execution as user / non-user.
+                The executions marked as user actions are registered in the UI support
+                <code>org.netbeans.spi.project.ui.support.BuildExecutionSupport</code>. By default the execution is an user action.
+                </p>
+            </description>
+            <class package="org.apache.tools.ant.module.api" name="AntTargetExecutor"/>
+        </change>
 
         <change id="tabReplacePolicy">
             <api name="general"/>
diff --git a/o.apache.tools.ant.module/nbproject/project.properties b/o.apache.tools.ant.module/nbproject/project.properties
--- a/o.apache.tools.ant.module/nbproject/project.properties
+++ b/o.apache.tools.ant.module/nbproject/project.properties
@@ -42,7 +42,7 @@
 
 javac.compilerargs=-Xlint:unchecked
 javac.source=1.8
-spec.version.base=3.84.0
+spec.version.base=3.85.0
 compile.ant.jar=${ant.core.lib}
 compile.ant-launcher.jar=${ant.core.lib}/../ant-launcher.jar
 src-bridge.cp.extra=build/classes:${compile.ant.jar}:${compile.ant-launcher.jar}
diff --git a/o.apache.tools.ant.module/src/org/apache/tools/ant/module/api/AntTargetExecutor.java b/o.apache.tools.ant.module/src/org/apache/tools/ant/module/api/AntTargetExecutor.java
--- a/o.apache.tools.ant.module/src/org/apache/tools/ant/module/api/AntTargetExecutor.java
+++ b/o.apache.tools.ant.module/src/org/apache/tools/ant/module/api/AntTargetExecutor.java
@@ -118,6 +118,7 @@
             assert env.canBeReplaced != null;
             te.setTabReplaceStrategy(env.canReplace,env.canBeReplaced);
         }
+        te.setUserAction(env.userAction);
         if (env.getLogger() == null) {
             return te.execute();
         } else {
@@ -139,6 +140,7 @@
         private String preferredName;
         private Predicate<String> canReplace;
         private Predicate<String> canBeReplaced;
+        private boolean userAction;
 
         /** Create instance of Env class describing environment for Ant target execution.
          */
@@ -147,6 +149,7 @@
             properties = new Properties();
             properties.putAll(AntSettings.getProperties());
             concealedProperties = Collections.emptySet();
+            userAction = true;
         }
 
         /**
@@ -259,5 +262,18 @@
             this.canReplace = canReplace;
             this.canBeReplaced = canBeReplaced;
         }
+
+        /**
+         * Marks the execution as an user action.
+         * The executions marked as user actions are registered in the
+         * UI support {@link org.netbeans.spi.project.ui.support.BuildExecutionSupport}.
+         * By default the execution is an user action.
+         * @param userAction if true the execution is registered into
+         * the {@link org.netbeans.spi.project.ui.support.BuildExecutionSupport}
+         * @since 3.85
+         */
+        public void setUserAction(final boolean userAction) {
+            this.userAction = userAction;
+        }
     }
 }
diff --git a/o.apache.tools.ant.module/src/org/apache/tools/ant/module/run/LastTargetExecuted.java b/o.apache.tools.ant.module/src/org/apache/tools/ant/module/run/LastTargetExecuted.java
--- a/o.apache.tools.ant.module/src/org/apache/tools/ant/module/run/LastTargetExecuted.java
+++ b/o.apache.tools.ant.module/src/org/apache/tools/ant/module/run/LastTargetExecuted.java
@@ -69,7 +69,8 @@
  */
 public class LastTargetExecuted implements BuildExecutionSupport.ActionItem {
     
-    private LastTargetExecuted() {}
+    private LastTargetExecuted() {
+    }
     
     private File buildScript;
     //private static int verbosity;
@@ -81,6 +82,7 @@
     private Boolean shouldSaveAllDocs;
     private Predicate<String> canReplace;
     private Predicate<String> canBeReplaced;
+    private boolean wasRegistered;
 
     /** Called from {@link TargetExecutor}. */
     static LastTargetExecuted record(
@@ -92,7 +94,8 @@
             @NullAllowed final Boolean shouldSaveAllDocs,
             @NonNull final Predicate<String> canReplace,
             @NonNull final Predicate<String> canBeReplaced,
-            Thread thread) {
+            Thread thread,
+            final boolean shouldRegister) {
         LastTargetExecuted rec = new LastTargetExecuted();
         rec.buildScript = buildScript;
         //LastTargetExecuted.verbosity = verbosity;
@@ -104,14 +107,19 @@
         rec.shouldSaveAllDocs = shouldSaveAllDocs;
         rec.canReplace = canReplace;
         rec.canBeReplaced = canBeReplaced;
-        BuildExecutionSupport.registerRunningItem(rec);
+        if (shouldRegister) {
+            BuildExecutionSupport.registerRunningItem(rec);
+        }
+        rec.wasRegistered = shouldRegister;
         return rec;
     }
 
     static void finish(LastTargetExecuted exc) {
-        BuildExecutionSupport.registerFinishedItem(exc);
+        if (exc.wasRegistered) {
+            BuildExecutionSupport.registerFinishedItem(exc);
+        }
     }
-    
+
     /**
      * Get the last build script to be run.
      * @return the last-run build script, or null if nothing has been run yet (or the build script disappeared etc.)
diff --git a/o.apache.tools.ant.module/src/org/apache/tools/ant/module/run/TargetExecutor.java b/o.apache.tools.ant.module/src/org/apache/tools/ant/module/run/TargetExecutor.java
--- a/o.apache.tools.ant.module/src/org/apache/tools/ant/module/run/TargetExecutor.java
+++ b/o.apache.tools.ant.module/src/org/apache/tools/ant/module/run/TargetExecutor.java
@@ -134,6 +134,7 @@
     private Boolean shouldSaveAllDocs;
     private Predicate<String> canReplace = (s) -> true;
     private Predicate<String> canBeReplaced = (s) -> true;
+    private boolean userAction = true;
     private volatile Set<String> concealedProperties;
 
     /** targets may be null to indicate default target */
@@ -173,6 +174,10 @@
         this.canBeReplaced = canBeReplaced;
     }
     
+    public void setUserAction(final boolean userAction) {
+        this.userAction = userAction;
+    }
+    
     private static String getProcessDisplayName(AntProjectCookie pcookie, List<String> targetNames) {
         Element projel = pcookie.getProjectElement();
         String projectName;
@@ -527,7 +532,8 @@
                 shouldSaveAllDocs,
                 canReplace,
                 canBeReplaced,
-                Thread.currentThread());
+                Thread.currentThread(),
+                userAction);
         sa.t = thisExec[0];
         
         // Don't hog the CPU, the build might take a while: